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Key Locking Inserts

70 products
Easy-to-install key locking inserts from Grainger provide a positive mechanical lock against rotation from vibration or torsion. Use these threaded inserts in metal materials for thread reinforcement or for quick repair of stripped, damaged, or worn threads. This selection includes key locking threaded inserts in a wide range of inside and outside dimensions and overall lengths. Choose from two-key and four-key types in 18-8 stainless steel and black phosphate steel. Get high-quality key locking inserts from Grainger.

Key Locking Thread Inserts

Key Locking Thread Inserts
Threaded inserts have locking keys to hold them in place. These inserts are for metal applications; not recommended for cast iron or brittle material. Repair damaged threads with a positive mechanical lock, preventing rotational spinout from vibration or torque.

2 Locking Keys

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4 Locking Keys

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.